In his first-ever interview, the sole Australian survivor of the Waco siege has revealed to 60 Minutes what really took place during the 51-day stand-off, and why he believes crazed cult leader David Koresh will one day return to Earth as the son of God.

Dog left in car while owner fronted Cairns court put down

One of two dogs left in a hot car for more than two hours while their owner was in a Queensland court has had to be euthanized, despite the best efforts of bystanders to save them.

Although the passers-by were able to give the pups water until members of the Cairns council turned up and extracted them from the vehicle, the male of the pair, suffering from heat exhaustion, was put down after a veterinary examination.

The dogs can be heard panting heavily in a distressing video of the incident, which happened on Wharf Street yesterday, when the temperature soared to nearly 40 degrees.

"I was trying to put a bowl through the window and give them water," witness Kim Cassidy told The Cairns Post.

"We’ve been here for an hour in 36-degree heat.

"It’s hard to know there is nothing you can do about it."

On hot days, temperatures inside cars can be up to 30 degrees higher than the air temperature; Richard Wright, of the RSPCA, estimated that it may have been as hot as 50 degrees inside the car.